Train-signal system



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E. S. GRAVER.

Y TRAIN SIGNAL SYSTEM. No. 351,759. Patented Nov. 2, 188.6.

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E. S. GRA-VER.

` TRAIN SIGNAL SYSTEM. No. 351,759. Patented Nov. 2, 1886.

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UNITED STATES "PATENT OFFICE.

ERWIN S. GRAN/TER, OF PHILADELPHIA, PENNSYLVANIA.

TRAIN-SIGNAL SYSTEM. f

SPECIFICATION forming'pari: of Letters Patent No. 351.759, dated November 2.188,6.

, Application filed June 29, 1886.

citizen of the United States,'and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Train- Signal System, of which the following is a complete, clear, and exact description, setting forth in general and in detail my invention.

My invention relates to improvements upon electric signals adapted to take the`plaee of the usual bell and bell-rope.

The object of the invention is to provide improved means of doing away with chemical batteries, which are objectionable on account of the corrosive act-ion of the vapors given off.

rIhe invention consists of the combination of elements particularly described in the sequel and claimed in the claims.

In order to illustrate the practical vmanner of carrying out the invention, and to enable others skilled in the art to which the invention appertains to make and use the same, drawings are hereunto annexed and described, in which similar letters represent corresponding elements,=and in which each part referred to is designated by a single character.

Figure lis a side view of the mechanism for operating the electrical generator. Fig. 2 is a top view of the-same, showing also the generator. Figs. 3, 4, and 5 are differentv views of the coupling. Fig. 6. is a general View of a railway-train to show how the invention' is practically applied, and Fig. 7 shows a diagram intended to illustrate the nature of the to a stud, G, adjacent to said shaft, and at the other end connected to said-lever upon the pro- Ijection H, and an electric circuit represented in part by the line I,provided'with two terminal springs, J, adjacent to said lever.

Referring to Fig. 3, where the coupling is Serial No. 106.597. (No model.)

shown in side view in a separated condition, to Fig. 4, where a top view of one of the parts is-shown by itself, and to Fig. 5, where the two parts (identical to each other)- are shown coupled, the device is seen to consist of the combination oftwo wedge shapedimetallic pieces or terminals, K, each provided at the smaller end with a circular hole, L, and a slot, M, and at the larger end with a projecting pin, N, having a-head or enlarged portion, O, the said pin iitting into said slot.

consists of the combination -of a locomotive, P, railway cars Q, a railway, R, an electric bell, S, or'siuiilar signal in the locomotive, a

the coupling shown in Figs. 3, 4, and 5, through the switch and dynamo shown in Fig. 1,through is not seen in Fig. 6; but the lever D is shown as connected to a cord, U, which runs through the length of each car.

By the disposition above explained, and as shown in Fig. 7, the dynamos are adapted to be connected up in multiple are between the wire passing through the cars and the track located underneath the train. The electric circuits are shown more clearly in Fig. 7.

It is evident that when the lever is pulled in the direction ofthe arrow the ratchet E engages in theratchet-wheel Q and rotates the armature of the dynamo, generating a current which passes through'the circuit I, simultaneously closed by the lever, which is of conducting material, pressing upon the springs or terminals J. Upon releasing the lever it is withdrawn to its normal position (shown in Fig. l) by the spring F, thereby both breaking the circuit and stopping the dynamo. When the conductor of the train is at the left end of the car, he may operate the lever by thecord U. Y

The coupling may be put together by bringing the two pieces K in such relative positions,

pass through the circular holes L. By pulling them in opposite directions, the pins lock themselves in the slots, as shown in Fig. 4.

The invention is not limited to the precise construction hereinbefore described, as it is as shown in Fig. 3, that the pin-heads O will Referring to Fig. 6, the system there shown circuit, I, passing through said bell, through lthe wheels T, and into the track. The dynamo ICQ evident that many modifications may be made therein without departing from the spirit of the invention.

Having now stated the title, object, and nature 0f the Said invention, having described its practical realization by reference to the accompanying drawings, having particularly ascertained the manner in which the same operates to accomplish the said object, what I consider to be novel and original, and therefore claim as my invention, is-

1. In a railway-train-signaling system, an eleetric-recciving apparatus located in the locomoti-ve, in combination with magneto 0r dynamo electric generators, one on each car, and a circuit-closing device,forlning also a lever for operating the generator, substantially as and for the purpose set forth.

2. In a railway-train-signaling system, a receiving apparatus located on the locomotive, in combination with a series of generators, one on every ear, and a circuit-closing device operatively connected with each generator, the said circuit-closing device having attached to it a cord which runs through the car, substantially as and for the purpose set forth.

3. In a railway-train-signaling system, a signal-receiving apparatus on the locomotive, in combination with a series of generators located one 011 every car, and a circuit-elosing lever carrying a pawl which engages with a ratchet-wheel on the shaft of the generator, substantiallyas and for the purpose set forth.

4. In a magneto train-signal, the combination, with a magneto-electric generator, of a ratchet-wheel fixed upon the shaft of said generator, a lever having a hole through which passes loosely said shaft, a ratchet upon said lever and gearing into said Wheel, a rectilinear spring fixed at one end to a point adjacent to said shaft and at the other end connected with said lever, and an electric circuit having terminals adjacent to said lever, which is of conducting material and normally out of contact with said terminals.

5. In a magneto traiirsignal, the ,combination, With a generator-circuit and signal therein, of coupling in said circuit, consisting of two wedge-shaped terminals, each provided at the smaller end with a circular hole and a slot, u

and at the larger end with a projecting pin having a head or enlarged portion, the said pins fitting into said slots, substantially as and for the purpose described.

In testimony whereof I have hereunto signed my name and aiiixed my seal, in the presence of two subscribing witnesses, this 23d day of June, 1886.

ERWIN S. GRAVER. [L s] Witnesses:

C. J. SHOCK, A. G. GRAVER. 

